Farklı Bölgelerden Elde Edilen Isparta Gülü (Rosa damascena Mill.) Örneklerinin Biyokimyasal ve Antioksidan İçeriklerinin Belirlenmesi

Abstract

Gül ve gül ürünleri, kozmetik, parfümeri, gıda ve sağlık gibi çok çeşitli kullanım alanlarına sahip ekonomik açıdan önemli birçok sektörde hammadde olarak kullanılmaktadır. Türkiye’de Isparta bölgesinde yoğun olarak yetiştirilen Rosa damascena Mill. önemli bir ihraç ürünüdür. Bu çalışmada, Isparta ilinde, Ardıçlı ve Gülköy bölgelerinde yetiştiriciliği yapılan Isparta gülünün çiçek ve yapraklarında bulunan toplam fenolik madde, toplam flavonoid madde ve toplam antioksidan aktivite içerikleri karşılaştırılmıştır. Çalışmada elde edilen veriler, tek yönlü varyans analizi (One-way ANOVA) ile değerlendirilmiş ve anlamlı farklılıklar LSD çoklu karşılaştırma testi ile karşılaştırılmıştır. En yüksek fenolik madde miktarı Gülköy lokasyonunda gül yaprağında (1121.59 mg GAE/100g), en yüksek flavonoid madde miktarı Ardıçlı lokasyonunda gül yaprağında (77.18 mg catechin/100g) ve en yüksek DPPH antioksidan aktivite ise Ardıçlı lokasyonunda gül çiçeğinde (%93.29) belirlenmiştir. Sonuç olarak, Rosa damascena Mill. genotipinde belirlenen fenolik madde, flavonoid içerikleri ve antioksidan kapasitedeki varyasyonların, ekolojik faktörler ve yetiştiricilik koşulları ile ilişkili olabileceği, bu nedenle bölgesel farklılıkların gül ürünlerinin biyokimyasal kalite parametreleri üzerinde belirleyici bir etken olduğu söylenebilir.

Keywords

• Antioksidan
• Fenolik madde
• Flavonoid
• Lokasyon
• Rosa damascena Mill.

Determination of Biochemical and Antioxidant Contents of Isparta Rose (Rosa damascena Mill.) Samples Obtained from Different Regions

Abstract

Roses and rose-derived products are widely utilized as raw materials in economically important sectors such as cosmetics, perfumery, food, and healthcare. In Türkiye, the Rosa damascena Mill., which is predominantly cultivated in the Isparta region, constitutes a significant export commodity. In this study, the total phenolic content, total flavonoid content, and total antioxidant activity of flowers and leaves of Isparta rose cultivated in the Ardıçlı and Gülköy regions of Isparta province were compared. The data obtained in the study were evaluated using one-way analysis of variance (One-way ANOVA), and significant differences were compared using the LSD post-hoc test. The highest phenolic content was determined in rose leaves from the Gülköy location (1121.59 mg GAE/100 g), the highest flavonoid content in rose leaves from the Ardıçlı location (77.18 mg catechin/100 g), and the highest DPPH antioxidant activity in rose flowers from the Ardıçlı location (93.29%). In conclusion, the variations observed in phenolic compounds, flavonoid contents, and antioxidant capacity of Rosa damascena Mill. may be associated with ecological factors and cultivation conditions, indicating that regional differences play a decisive role in the biochemical quality parameters of rose products.

Keywords

• Antioxidant
• Phenolic content
• Flavonoid
• Location
• Rosa damascena Mill.

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